1370790020

素因数分解:

$2^2\times 5^1\times {\mathrm{68539501}}^1$

素因数の和:68539510

約数の個数: 12

約数和(自身を含む): 2878659084

約数和(自身を除く): 1507869064

約数列:

[1, 2, 4, 5, 10, 20, 68539501, 137079002, 274158004, 342697505, 685395010, 1370790020]

約数ペア:

[(1, 1370790020), (2, 685395010), (4, 342697505), (5, 274158004), (10, 137079002), (20, 68539501)]